package com.njwb.day05;

public class Test01 {
    public static void main(String[] args) {
        A a=new A(1,2);
        System.out.println(a);
    }
}

class A{
    int x;
    int y;

    public A(int a,int b){
        this(b);//->A(int b)
        x=a;
        //y=b;
    }

    public A(int b){
        y=b;
    }



}
